Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12113040 | Semiconductor device | Eri Fukuda, Daisuke Tsunami | 2024-10-08 |
| 11195807 | Semiconductor device, high-frequency power amplifier, and method of manufacturing semiconductor device | Yoichi Nogami, Kenichi Horiguchi, Shigeo Yamabe, Satoshi Miho, Kenji Mukai | 2021-12-07 |
| 9231558 | High frequency power amplifier | — | 2016-01-05 |
| 8558549 | Detector circuit and semiconductor device using same | Kazuya Yamamoto, Miyo Miyashita | 2013-10-15 |
| 8289102 | Directional coupler | Kazuya Yamamoto, Miyo Miyashita, Hitoshi Kurusu | 2012-10-16 |
| 8207790 | High frequency power amplifier | Takao Haruna, Jun Takaso | 2012-06-26 |
| 8138836 | Emitter-follower type bias circuit | Takayuki Matsuzuka, Kazuya Yamamoto | 2012-03-20 |
| 7605648 | Power amplifier | Kazuya Yamamoto, Satoshi Suzuki, Takayuki Matsuzuka, Teruyuki Shimura | 2009-10-20 |
| 7417507 | Bias circuit for power amplifier having a low degradation in distortion characteristics | Kazuya Yamamoto, Hiroyuki Otsuka, Kosei Maemura | 2008-08-26 |
| 7408412 | Power amplifier and wireless communication device | Kazuya Yamamoto | 2008-08-05 |
| 7145397 | Output overvoltage protection circuit for power amplifier | Kazuya Yamamoto, Teruyuki Shimura, Satoshi Suzuki | 2006-12-05 |
| 6570451 | High-frequency power amplifier | — | 2003-05-27 |
| 6278328 | Power amplifier | Kazuya Yamamoto, Akira Inoue, Satoshi Suzuki | 2001-08-21 |
| 6240262 | Toner supply device and toner cartridge | Yoshiharu Taniyama, Shinichi Itoh | 2001-05-29 |
| 5016560 | Device for image toner distribution on a developing device | Kaoru Nishida, Mamoru Shimono, Hideyuki Shinohara, Koichi Ando | 1991-05-21 |
| 5012283 | Copying apparatus having a lamp to form or erase an image | Mamoru Shimono, Taiichi Kawaguchi, Yoichi Taya, Kouji Yukinaga, Susumu Nomura +1 more | 1991-04-30 |
| 4806992 | Developing apparatus | Sachiko Yasuda, Minoru Yoshida, Hideo Mukai | 1989-02-21 |
| 4780743 | Developing device for image forming apparatus | Kiyoshi Tomimori | 1988-10-25 |
| 4748472 | Developing apparatus with multiple blade developer conditioner | Hideo Mukai | 1988-05-31 |